[rtems commit] malloc: Avoid memory leaks during task delete

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    648a5df4ce33488120bf97b56b2b7d5ef12028ce
Changeset: http://git.rtems.org/rtems/commit/?id=648a5df4ce33488120bf97b56b2b7d5ef12028ce

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Wed Apr  6 13:52:25 2016 +0200

malloc: Avoid memory leaks during task delete

Call _Malloc_Process_deferred_frees() owning the allocator lock to
prevent deletion of the executing thread while doing the deferred frees.

---

 cpukit/libcsupport/src/malloc_deferred.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cpukit/libcsupport/src/malloc_deferred.c b/cpukit/libcsupport/src/malloc_deferred.c
index 977ec7b..962ae3e 100644
--- a/cpukit/libcsupport/src/malloc_deferred.c
+++ b/cpukit/libcsupport/src/malloc_deferred.c
@@ -86,13 +86,15 @@ void *rtems_heap_allocate_aligned_with_boundary(
 
   switch ( _Malloc_System_state() ) {
     case MALLOC_SYSTEM_STATE_NORMAL:
+      _RTEMS_Lock_allocator();
       _Malloc_Process_deferred_frees();
-      p = _Protected_heap_Allocate_aligned_with_boundary(
+      p = _Heap_Allocate_aligned_with_boundary(
         heap,
         size,
         alignment,
         boundary
       );
+      _RTEMS_Unlock_allocator();
       break;
     case MALLOC_SYSTEM_STATE_NO_PROTECTION:
       p = _Heap_Allocate_aligned_with_boundary(